ATE146444T1 - METHOD FOR PRODUCING HIGH YIELD SODIUM HYDROSULPHITE - Google Patents

METHOD FOR PRODUCING HIGH YIELD SODIUM HYDROSULPHITE

Info

Publication number
ATE146444T1
ATE146444T1 AT93307112T AT93307112T ATE146444T1 AT E146444 T1 ATE146444 T1 AT E146444T1 AT 93307112 T AT93307112 T AT 93307112T AT 93307112 T AT93307112 T AT 93307112T AT E146444 T1 ATE146444 T1 AT E146444T1
Authority
AT
Austria
Prior art keywords
high yield
producing high
sodium hydrosulphite
yield sodium
sodium
Prior art date
Application number
AT93307112T
Other languages
German (de)
Inventor
David C Munroe
Original Assignee
Morton Int Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Morton Int Inc filed Critical Morton Int Inc
Application granted granted Critical
Publication of ATE146444T1 publication Critical patent/ATE146444T1/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B17/00—Sulfur; Compounds thereof
    • C01B17/64—Thiosulfates; Dithionites; Polythionates
    • C01B17/66—Dithionites or hydrosulfites (S2O42-)

Abstract

An improved high yield process and apparatus for producing sodium hydrosulfite by simultaneously contacting a first reaction mixture of sodium borohydride, sodium hydroxide, and water with a second reaction mixture of an acidic sulfur-containing compound or precursors thereof used in producing sodium hydrosulfite from sodium borohydride. <IMAGE>
AT93307112T 1992-09-11 1993-09-09 METHOD FOR PRODUCING HIGH YIELD SODIUM HYDROSULPHITE ATE146444T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/943,842 US5336479A (en) 1989-01-05 1992-09-11 High yield sodium hydrosulfite generation

Publications (1)

Publication Number Publication Date
ATE146444T1 true ATE146444T1 (en) 1997-01-15

Family

ID=25480363

Family Applications (1)

Application Number Title Priority Date Filing Date
AT93307112T ATE146444T1 (en) 1992-09-11 1993-09-09 METHOD FOR PRODUCING HIGH YIELD SODIUM HYDROSULPHITE

Country Status (8)

Country Link
US (1) US5336479A (en)
EP (1) EP0587429B1 (en)
AT (1) ATE146444T1 (en)
CA (1) CA2104488C (en)
DE (1) DE69306701T2 (en)
FI (1) FI112861B (en)
NO (1) NO310715B1 (en)
ZA (1) ZA935615B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6217621B1 (en) 1999-07-09 2001-04-17 Morton International Inc. Textile substrate dye stripping
EP1478593A4 (en) * 2001-11-13 2008-07-02 Montgomery Chemicals Llc Aqueous borohydride compositions
DE60301446T2 (en) * 2002-06-28 2006-06-14 Rohm & Haas Process for brightening pulp with hydrosulfite solution
DE60326113D1 (en) * 2002-11-05 2009-03-26 Rohm & Haas Process for bleaching mechanical pulp
BRPI0403054A (en) * 2004-07-22 2006-03-07 Bann Quimica Ltda equipment for the preparation of alkaline aqueous sodium hydrosulfite solution and use of equipment
US10850982B2 (en) * 2015-04-29 2020-12-01 Basf Se Stabilization of sodium dithionite by means of various additives

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA660586A (en) * 1963-04-02 A. Hinckley Alfred Preparation of alkali metal hydrosulfites
US3985674A (en) * 1974-12-10 1976-10-12 Virginia Chemicals Inc. Stabilized sodium dithionite solutions
EP0027369A1 (en) * 1979-10-12 1981-04-22 Thiokol Corporation Stable precursor solution for the generation of hydrosulfite and use thereof in bleaching wood pulp, brightening kaolin clay and reducing vat dyestuffs to their leuco form
US4534954A (en) * 1982-08-17 1985-08-13 Virginia Chemicals Inc. Sodium hydrosulfite slurries
US4680136A (en) * 1985-05-07 1987-07-14 Stora Kopparbergs Bergslags Ab Method for preparing compositions which can be used in the production of sodium dithionite; and the use of such compositions
IN172015B (en) * 1986-01-03 1993-03-13 Thiokol Morton Inc
US4788041A (en) * 1986-12-22 1988-11-29 Morton Thiokol, Inc. Apparatus for the production of sodium hydrosulfite
US4859447A (en) * 1986-12-22 1989-08-22 Morton Thiokol, Inc. Process for the production of sodium hydrosulfite
SE457647B (en) * 1987-06-24 1989-01-16 Eka Nobel Ab SEATED WHITE MATERIAL WITH DITIONITE SOLUTION
CA1340248C (en) * 1989-01-05 1998-12-15 Morton International, Inc. High yield sodium hydrosulfite generation
US5094833A (en) * 1989-01-05 1992-03-10 Morton International, Inc. High yield sodium hydrosulfite generation

Also Published As

Publication number Publication date
DE69306701D1 (en) 1997-01-30
FI112861B (en) 2004-01-30
EP0587429B1 (en) 1996-12-18
EP0587429A1 (en) 1994-03-16
FI933884A (en) 1994-03-12
FI933884A0 (en) 1993-09-06
NO932952L (en) 1994-03-14
NO310715B1 (en) 2001-08-20
ZA935615B (en) 1994-03-01
CA2104488A1 (en) 1994-03-12
DE69306701T2 (en) 1997-04-30
CA2104488C (en) 1997-01-28
US5336479A (en) 1994-08-09
NO932952D0 (en) 1993-08-19

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